Meets New Laws & Legislations - This alarm exceeds industry standards, and is listed to UL Standard UL 217 and is California State Fire Marshal approved.

The USI MI106S Smoke Alarm features a 10-year sealed battery for permanent power and continuous protection in the event of a power outage. Universal Smoke Sensing Technology detects fast flaming fires and slow smoldering fires while microprocessor intelligence virtually eliminates nuisance alarms for the perfect two-in-one home safety protection. Studies show that one of the leading causes of preventable death due to smoke and fire is a deactivated or inoperable alarm. This USI Hardwired Smoke and Fire Alarm is equipped with a 10-year sealed battery that provides a decade in peace of mind, while removing the need for battery replacement. Permanent Power allows you to simply install and activate the alarm for protection that will last for up to 10 years. This gives you maintenance-free battery power, eliminating low battery chirps and the need to buy replacement batteries throughout the life of the alarm. Purchasing a permanent power alarm saves you money and reduces environmental impact by providing environment friendly protection. This USI Smoke Alarm reduces environmental waste and eliminates disposal of up to twenty 9-volt batteries.

5

Ordered seven new alarms to replace outdated FireX alarms in my home quick and easy change over...ordered direct and got a great price. Happy property owner!

replacement detector

Reviewed: 07/09/2019 by Julie Anderson

We replaced our detectors as we were tired of the batteries needing replacement in the middle of the night. The customer service representative was very helpful helping me figure out which unit to buy. Really can't comment on how they work as we haven't had any type of fire.

Replacements

Reviewed: 06/28/2019 by Gary Bell

Easy to install. 3 wire system. Replaced 8 old fire detectors with new 10 year detectors. No wiring just easy.

Reviewed: 06/25/2019 by Joseph Milano

Replaced old fire alarms. Needed to change the base but otherwise easy install. Have not had the opportunity to test these out as I have never had a fire. The test button works well. All interconnected and work together.

Positive

Reviewed: 04/03/2019 by DAVID OBERRY

These appear to fit the bill at better cost than a retail store. Have been using them in client's homes - only caution is to pull activation tab carefully to ensure full activation

Easy as Pie

Reviewed: 03/14/2019 by John M Gould

I replaced 7 detectors and it could have been easier. I had to change out the old mounting brackets to the new ones included, which was super easy two screws. The new detectors plugged right in and I was done in no time. Just follow the instructions. It was a pleasure to not have to deal with any annoying beeping during the replacement process.

Perfect

Reviewed: 01/26/2019 by Sam Dolinsky

Replacements for our 10 year old plus USI units were installed simply by our local fire department who took note of the USI products to recommend to others - nice recognition.

Reviewed: 01/16/2019 by Rollin Nash, Jr.

I needed to replace 7 units that had expired over 10 years. I asked Michelle what new units were available that were compatible with the old units. Michelle gave me several options and the new units I choose could use the same plug from the old units. So installing each new unit took about 2 minutes for each unit. I spent more time moving the ladder than it took to install them. Michelle was very quick to respond to my email. I choose units that have a 10 year sealed battery, so now I don't have to change batteries every 6 months.

review

Reviewed: 12/11/2018 by john miraglia

The product eliminated my having the climb a ladder every year to replace a battery.

Home Detector Changeout

Reviewed: 11/29/2018 by Lawrence Laczko

Replaced all the old units in my house in about 30-40 minutes. Easy & quick replacement. Videos on line were very helpful, but nothing was complicated and all worked. Great product & now peace of mind that everything is working.

Reviewed: 11/29/2018 by S Rebecca Keith

The whole experience was top notch. We had excellent support electronically with Michele Metcalf. She recommended what to get, it came quickly, without trouble. There was even a defective one. When we pulled the tab, it didn't alarm. We were told to send back and another would be sent. Top notch service and will work again with this company when needed. It is much appreciated to have wonderful customer service. You don't get that too often these days. :

Reviewed: 10/11/2018 by SACHIN PATEL

I'm a USI customer since 2010 and very happy with product, just change entire home fire smoke detectors and was very easy changing and installation.
Very happy with this products

Reviewed: 10/03/2018 by Fred Reikowsky

Easy hookup.

Reviewed: 08/18/2018 by Steve Henry

So far so good but they'll be up for 10 years so it's hard to give a rating of 5 after 10 days.

NEVER up in smoke!

Reviewed: 07/26/2018 by Rebecca Pappalardo

Received product in timely fashion. I had these installed throughout my entire home and I love them. I never have to remember to change the battery. I have 8 in my home and changing batteries yearly is the last thing I want to do. No regrets!!!

Smoke alarms

Reviewed: 07/24/2018 by Dan Schuerman

I purchase 7 units. Very easy to install. Work well, Very loud alarm will surely wake you. They are 10 year alarms so no battery changes.

Easy to install and no more random beeps. Also we had an accidental test when fry pan was left on burner to dry and was left on too long. Fire alarms all went off to let us know there was a little smoke in the house. Not having to replace batteries every year is a great plus.

works good

Reviewed: 01/05/2018 by Kevin Graham

Hi, had to replace my detectors since they were starting to go off when I cooked. They were 10 years old. I ordered 2 iono detectors 3 photo detectors and 1 carbon monoxide one all 10 year sealed and wired ones. They all installed and worked good and solved my cooking problem. Also the customer service was very responsive and the items were shipped quickly A+. Kevin

interconnected dual sensor alarms

Reviewed: 12/12/2017 by charles fairless

Replaced 4 old interconnected hardwired smoke detectors with Universal's hardwired 10 year sealed battery backup dual sensor smoke & fire alarms after using their sealed battery smoke detectors for a few years. Look forward to 10 years of not having to change batteries annually. Products work exactly as advertised.

Dual smoke detector

Reviewed: 10/09/2017 by Virgil Hull

Excellent product...easy install!

Reviewed: 09/21/2017 by Tyler

Replaced 2 older USI smoke detectors with these units. Simple installation and great that they have a sealed 10 year backup battery! Looking to replace the last older model unit with one more of these.

replacement unit

Reviewed: 08/30/2017 by Robert Terrano

I replaced an older style smoke alarm. I made a plug in adapter for this unit and it was a 5 minute installation, I love I don't have to replace batteries.

Reviewed: 08/15/2017 by Steve Sellers

Seems to be a good product. Other USI products in use had expired and needed to be replaced. Some difficulty in installing ceiling plate to hold alarm. Once installed, alarm works well. Took several days for the alarms to be received through normal mail process.

Smoke Alarm Replacements

Reviewed: 07/03/2017 by Kevin Morgan

Easy to install. Replaced 10 year old USI smoke alarms so the wired connection was simple.

Easy setup and install

Reviewed: 06/26/2017 by Mark Lindsay

We order these alarms for our properties because they are easy to setup and install.

No Annual Battery Changes!

Reviewed: 06/06/2017 by Douglas Reep

Nice units, and no hassle of replacing batteries every year. Hopefully, the false alarm issues we had with some of our older USI units have also been fixed.

No Annual Battery Changes!

Reviewed: 06/06/2017 by Douglas Reep

Nice units, and no hassle of replacing batteries every year. Hopefully, the false alarm issues we had with some of our older USI units have also been fixed.

Easy Install

Reviewed: 03/17/2017 by John Scarlata

I replaced all of my bedroom detectors with the 2 in 1 Smoke and Fire alarm. The installation was straight forward and I like the idea of not worrying about replacing the battery

Solid detectors

Reviewed: 02/08/2017 by Michael Ende

Easy to install, and packed with features. Great value in dual sensing technology.

Easy to install

Reviewed: 09/28/2016 by Edward Hollis

Easy to install, great products, like the 10 year battery.

All-in-one for me

Reviewed: 09/12/2016 by Bruce Knapp

I did a lot of research when I found this alarm - I wanted 2-in-1 detection, a backup battery I did not have to check/replace for a long time and a reasonable price. I ended up buying 5 to replace my older units in my home.

Reviewed: 07/12/2016 by Ronald Kading

Very pleased with product. Easy to install. I could not believe the service, I ordered alarms one afternoon and the following day they arrived. Would highly recommend this company and its products.

Reviewed: 06/03/2016 by Michael A Kreps

Great pricing and service.

Reviewed: 05/24/2016 by David Wambeke

Seems to be excellent detectors and at a good price! Photoelectric/ionization type combination units are not that easy to find, and with a 10 year battery, should be a great product!

Save Lives - Upgrade

Reviewed: 05/19/2016 by Michael A Kreps

My detectors had reached the end of their life cycle and I installed 6 replacements in under an hour. Better detection and a 10 year battery. A win-win situation for myself and my family.

Reviewed: 02/11/2016 by George Daleo

Easy to install and working fine and look forward to it lasting 10 years. Both items arrived on time

Reviewed: 02/11/2016 by George Daleo

Easy to install and working fine and look forward to it lasting 10 years. Both items arrived on time

If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.

We make it as easy as possible to ensure you get the lowest prices available: